5,6-bis-TBDMS-5,6-dihydro-5-hydroxy-6-(2,5-dimethoxythiophenyl)thymidine                                                                                                                                                              在
                                                                                                                                                                                 
triethylamine tris(hydrogen fluoride)                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 12.0h,
                                                                                                                以63%的产率得到(5S,6S)-6-((2,5-dimethoxyphenyl)thio)-5-hydroxy-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methyldihydropyrimidine-2,4(1H,3H)-dione